CN101008425A - Electromechanical actuating device for a wheel brake system of a motor vehicle and a brake system equipped with such an actuating device - Google Patents
Electromechanical actuating device for a wheel brake system of a motor vehicle and a brake system equipped with such an actuating device Download PDFInfo
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- CN101008425A CN101008425A CNA2006101729832A CN200610172983A CN101008425A CN 101008425 A CN101008425 A CN 101008425A CN A2006101729832 A CNA2006101729832 A CN A2006101729832A CN 200610172983 A CN200610172983 A CN 200610172983A CN 101008425 A CN101008425 A CN 101008425A
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
- B60T13/741—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive acting on an ultimate actuator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
- F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
- F16D65/18—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for disc brakes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/38—Slack adjusters
- F16D65/40—Slack adjusters mechanical
- F16D65/52—Slack adjusters mechanical self-acting in one direction for adjusting excessive play
- F16D65/54—Slack adjusters mechanical self-acting in one direction for adjusting excessive play by means of direct linear adjustment
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/38—Slack adjusters
- F16D65/40—Slack adjusters mechanical
- F16D65/52—Slack adjusters mechanical self-acting in one direction for adjusting excessive play
- F16D65/56—Slack adjusters mechanical self-acting in one direction for adjusting excessive play with screw-thread and nut
- F16D65/567—Slack adjusters mechanical self-acting in one direction for adjusting excessive play with screw-thread and nut for mounting on a disc brake
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
- F16D2055/0004—Parts or details of disc brakes
- F16D2055/0062—Partly lined, i.e. braking surface extending over only a part of the disc circumference
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/18—Electric or magnetic
- F16D2121/24—Electric or magnetic using motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2125/00—Components of actuators
- F16D2125/18—Mechanical mechanisms
- F16D2125/20—Mechanical mechanisms converting rotation to linear movement or vice versa
- F16D2125/22—Mechanical mechanisms converting rotation to linear movement or vice versa acting transversely to the axis of rotation
- F16D2125/28—Cams; Levers with cams
- F16D2125/32—Cams; Levers with cams acting on one cam follower
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2125/00—Components of actuators
- F16D2125/18—Mechanical mechanisms
- F16D2125/20—Mechanical mechanisms converting rotation to linear movement or vice versa
- F16D2125/34—Mechanical mechanisms converting rotation to linear movement or vice versa acting in the direction of the axis of rotation
- F16D2125/36—Helical cams, Ball-rotating ramps
Abstract
A new actuating system 1 for a wheel brake system of a motor vehicle is proposed according to the present invention, wherein the braking action is obtained by means of a rotatable cam element 2 fixed to the motor shaft 8 of an electric motor, with said rotatable element 2 abutting against an actuating member 4, so as to laterally displace said actuating member 4, resulting in the braking pads 5 being pressed against the friction element (brake disk). Moreover, means are provided according to the present invention allowing to obtain adequate recovery of the backlash arising due to the wear of the brake pads, with these means comprising displaceable slide means adapted to displace the motor-cam group so as to keep the brake pads 5 in light contact with the friction element but without exerting any unwanted braking action.
Description
Technical field
The present invention relates to the automobile application.Especially, the present invention relates to be used for the actuator of wheel brake system of electric vehicle and the braking system that is equipped with this actuator.More specifically, the present invention relates to be used for the electromechanically device of wheel brake system of electric vehicle and the wheel brake system that is equipped with this electromechanically device.Further, the present invention relates to the electromechanically device of wheel brake system and the wheel brake system that is equipped with this electromechanically device, wherein said electromechanically device allows to produce higher braking force, and can compensate the wearing and tearing of brake shoe.
Background technique
In recent years, dropped into a lot of effort at automotive field, with develop be fit to substitute traditional in the hydraulic pressure that multiplely for example turns to, uses in braking and the speed variator system and/or the new system of mechanical system.Especially, dropped into very big effort, just, comprised system electric and/or that electronic equipment combines with machinery or hydraulic package in the exploitation of so-called " line traffic control " system.Especially, this is that for example vehicle power, travelling comfort and vehicle structure aspect are very useful because line control system newly developed demonstrates it in the multifrequency nature of improving vehicle, therefore meets client's demand.In fact, it should be noted that line control system, particularly, line control brake system vertically and aspect the lateral force provides improved performance in control preferably, and this just causes along with relevant improvement passive and the active safety aspect, and vehicle has power character preferably.And, relate to vehicle riding comfort, not to brake, turn to, the mechanical link bar of speed change, clutch and similar device, the boundary of driver and its driving sensation is improved.Further, relate to vehicle structure, do not arrive driver-commanded mechanical link bar, for the new vehicle structure of the fall-out that has relevant human engineering and associated safety problem provides possibility preferably.
Consider described line control brake system, can be divided into two big classes according to the solution of its brake actuator that is suitable for, that is:
A) electricity-liquid brake actuator and/or actuator;
B) electromechanical braking actuator and/or actuator.
Can in document US 6623087, find the example of electricity-liquid brake actuator, especially, line control brake system described in the document comprises the hydraulic actuator (pump) that is driven by motor under variable velocity, also have two electronic valves that are used for controlling hydraulic fluid pressure.And, the work of described motor of electronic control unit controls and electronic valve.This scheme can be considered to comprise the mixing electro-hydraulic line traffic control solution that is used to manage interactional Electronic Control Unit between driver, actuator and the brake calipers.
Disclosed line traffic control electricity-liquid actuator provides many advantages and can overcome the shortcoming that (to small part) influences conventional hydraulic in document US 6623087.In fact, the described electronic control that is adopted by electronic control unit can be integrated and easily be adapted in the common braking system this system easily.And, because described electric actuation no longer needs the driver to require great effort, and very high actuation speed is provided.And because its hydraulic package, this system provides very high reduction speed ratio, because the relatively large displacement of hydraulic actuator is converted into the minimum displacement of brake shoe.Further, the very important feature of this brake-by-wire actuator relates to the gap compensation, just compensates brake shoe automatically because the possibility in the gap of long-time wearing and tearing.In other words, owing to use hydraulic fluid, can recover and compensate the wearing and tearing and the resulting gap of described brake shoe automatically.
Although these advantages are provided,, the electricity described in the document US 6623087-moving actuator of liquidus control is not immaculate and/or defective.In fact, the existence of hydraulic package (pump, pipeline and fluid) also brings some to influence the old problem of conventional hydraulic actuator; Especially, because the moisture absorption behavior of some hydraulic fluids that use at present causes actuator performance to reduce, also there is the danger of leaking.These problems just partly can be avoided with sealed circuit.And the destruction the when replacing of described hydraulic fluid and/or vehicle scrapping is a trouble and expensive very, because described hydraulic fluid can not handle and/or be discharged in the environment simply, and must collect and destruction according to very strict anti-pollution program.At last, almost can not avoid to the needs of actuator and/or brake calipers from pressure generator (pump) connecting tube and/or flexible pipe, promptly need at least one big or alternatively, a plurality of little oil hydraulic circuits, therefore cause known line traffic control electro-hydraulic brake actuator volume big and heavy, therefore, can not satisfy the actual of automaker presses for.
In order to overcome the purpose of the shortcoming that influences electricity-moving actuator of liquidus control to small part, dynamo-electric line traffic control scheme has been proposed in the past; Especially, these solution developments are used to eliminate the purpose from the hydraulic fluid of actuator, thereby improve the environmental characteristics of system.Yet owing to must solve two very important technical problems, developing engine electric wire control actuator is considered to quite difficult task in essence.First technical problem relates to described brake calipers or the stop pawl parts must produce higher power (because strong braking action, described power is in the scope of 20-50N).Second technical problem is the wearing and tearing that described brake calipers must compensate described brake shoe, and described wearing and tearing are in the scope of 10-20mm.In fact, must be noted that described higher force level produces in short displacement range, because included actuator range between 0.1 to 0.2mm, needs less relatively actuating energy simultaneously in each braking action process.And between 10 to 20mm, this just means that the wearing and tearing of brake shoe and/or consumption must recover in some way and/or compensate by braking system up to brake shoe full consumption and the wearing and tearing that must change the brake shoe that is taken place.Yet even compare with actuator range (0.1-0.2mm), described wearing and tearing and/or consumption scope (10-20mm) are very big, must be guaranteed in the repeatedly braking action that the compensation of relevant wearing and tearing comprises in the whole duty cycle of brake shoe.This number of times is very big usually, and corresponding to an extremely low average abrasion (each braking action is in the scope of 0.001-0.01mm).
In the face of these two problems, the solution with electromechanical actuator that past proposes can further be divided into two groups, just or with ball screw (ball-screws) and/or transfer from one department to another the actuator of (epicyclic trains) week, or without ball screw and/or the actuator that transfers from one department to another in week.
Provided the example of the solution that belongs to above-mentioned first group in document WO 2005005854, especially, the described solution of the document comprises motor and has pushing brake shoe transfering from one department to another in week to the pushing system of brake disc.And electronic control unit is according to the described motor of driver's command driven, and collect based on sensor about the basis of the information of the current value of brake shoe position and/or described motor on the wearing and tearing of monitoring brake shoe.
Can find the example of the system that belongs to above-mentioned second group in document US 6666308, especially, different with described in the document WO 2005005854 of the system layout described in the document are based on the use of the ball screw that transfers from one department to another to connect with week.
Will be appreciated that the solution described in document WO 2005005854 and the document US 6666308 has all met above-mentioned technical need at least in part, just in short displacement range, provide high force level, and allow the compensation of brake shoe.Yet these solutions are subjected to a plurality of defect influence, cause these solutions to lack attraction force in the application of automotive field.The application that these defectives derive from ball screw in essence and transfer from one department to another in week; In fact, if, on the one hand, obtained big reduction speed ratio, on the other hand, it is very low that return drives (back-drive) efficient, means that brake shoe is lifted away from brake disc very slowly.And when these solutions also can produce other problems during in practical application, for example, weight is relatively large, structural complexity height, high and some height of rate of fault of corresponding price.And, the very large fact of noise when another problem that influences these solutions relates to their actuating, this also causes these solutions to lack attraction force in the application of automotive field.
Summary of the invention
Therefore, consider above-mentioned problem and/or defective, an object of the present invention is to provide actuator that has overcome wheel brake system defective, that be used for electric vehicle that influences one type of prior art syringe and the braking system that is equipped with this actuator.And one object of the present invention is to be provided for the actuator of the wheel brake system of electric vehicle, and described device allows relatively large rotation to be converted into the minimum displacement of brake shoe, and therefore bigger reduction speed ratio is provided.The present invention also aims to provide have this bigger reduction speed ratio but do not influence the actuating system of all problems of electromechanical assembly of the prior art, it is low etc. that described problem is for example big for their weight, complex structure, return drive efficient.Another object of the present invention also is to provide the actuator in the permission compensation gap that brake-pad wear causes.Another object of the present invention also is to be provided for the actuator of the wheel brake system of electric vehicle, and described device allows described braking action and two aspects of described wear compensation to keep independent.
According to the present invention, these obtain by the actuator that comprises motor and be connected to wheel brake system cam part, that be used for electric vehicle of described motor is provided.Described cam part allows big relatively rotation is converted to minimum displacement; And the high reduction speed ratio of acquisition allows the design torque of described motor and its size and weight to be reduced.Still according to the present invention, the actuator of above-mentioned proposition is suitable for the gap that compensation is automatically caused by brake-pad wear; Owing to only need a motor, this solution allows described braking action and two aspects of wear compensation to keep independent.
Especially, according to the present invention, a kind of actuator according to claim 1 is provided here, the actuator 1 that just is used for the wheel brake system of electric vehicle, wherein said wheel brake system comprises that friction means that at least one is fit to be connected to wheel and at least one are fit to press to and be lifted away from the brake shoe of described at least one friction means, the rotatable device that described actuator comprises motor and is fit to be rotated by described motor.Described actuator also comprises the movably actuating member that is fit to activate described at least one brake shoe, like this brake shoe is pressed to described at least one friction means.And, described whirligig comprises the rotatable part that has with the surface of described actuating member adjacency, so that described parts can cause described actuating member to move along first direction of actuation in the rotation of first sense of rotation, thereby activate described at least one brake shoe and be pressed to described at least one friction means.
And, according to the present invention, a kind of actuator according to claim 7 is provided, just comprise support and the actuator that is used for described motor is fixed to the fixing device on the described shelf, wherein said fixing device comprises and is fit to the movable fixture that moves along second predetermined direction, and described movable fixture causes described motor to move along the 3rd predetermined direction that is basically perpendicular to described second predetermined direction and is basically parallel to described first direction of actuation along described second predetermined direction mobile.
Still according to the present invention, a kind of actuator according to claim 12 is provided, just comprise the actuator that is fit to shifter that described movable fixture is moved along described second predetermined direction, described shifter can be by described motor activated.
A kind of braking system of electric vehicle according to claim 20 also is provided here, just comprise at least one friction means that is fit to be connected to wheel and be suitable for pressing to and be lifted away from the braking system of at least one pad parts of described at least one fixed component, described braking system is equipped with according to actuator of the present invention.
Additional embodiments of the present invention and/or particular content have been defined in the dependent claims.
To become more obvious in conjunction with following public content, the rotation that the principle that the present invention is based on is to be fixed to the rotatable components (the rotatable cam parts or the eccentric part that for example have cam face) of motor is used to obtain and the moving of the actuating member of described rotatable components adjacency.The moving of described actuating assembly is used to obtain the displacement of the hope of described brake shoe then, causes described brake shoe to be pressed towards described brake disc.Described rotary component allows relatively large rotation is converted to minimum displacement, just obtains bigger reduction speed ratio.And, the acquisition of the reduction speed ratio that this is bigger do not have the problem of the known machinery of influential prior art and/or electromechanical assembly.And the high reduction speed ratio of acquisition allows the design torque of described motor and its size and weight to be reduced.The present invention has considered that also described braking action and two aspects of described wear compensation can keep separate, especially, the present inventor thinks and can only keep this two aspect separate with a motor, so that do not lose the relevant size that reduces of described actuator and the advantage of weight.Especially, the present inventor thinks if described motor and described rotatable part can move when each braking action finishes, described brake shoe can with than short distance near described brake disc, this does not produce undesirable braking action with regard to allowing wear compensation.Here it is why, and according to the present invention, generator is used for moving described motor when each braking action finishes, so that make described brake shoe and described brake disc keep ideal distance.And, the present inventor think this important result can or by independently shifter that combines with described motor or the rotation that utilizes described motor are provided, the reactive torque that when each braking action finishes, produces and obtaining particularly.
Description of drawings
Below, describe with reference to accompanying drawing specific and/or preferred embodiment of the present invention.Yet, should be noted that to the invention is not restricted to disclosed embodiment, but disclosed embodiment only relating to special example of the present invention, scope of the present invention is definite by appended claim, especially, in the accompanying drawings:
Fig. 1 relates to the side view according to first embodiment of actuator of the present invention;
Fig. 2 relates to the side view according to another embodiment of actuator of the present invention;
Fig. 3 a and 3b relate to the respective top according to another embodiment of actuator of the present invention;
Fig. 4 relates to the rear view according to another embodiment of actuator of the present invention;
Fig. 4 a to 4d relates to actuator according to the present invention in the embodiment shown in Fig. 4, the rear view during this actuator respective phases of operation; And
Fig. 5 relates to the schematic representation according to braking system of the present invention.
Embodiment
When the present invention is elaborated in conjunction with following embodiment and accompanying drawing, be to be understood that following detailed description and accompanying drawing are not to limit the present invention in the disclosed content of specific embodiment, but the embodiment who describes below is only as the example of each side of the present invention, and scope of the present invention is determined by appended claim.
Can find out significantly openly that from above-mentioned the present invention has significant advantage in the application of automotive field, especially, the application of the present invention in the actuator of the wheel brake system of vehicle has significant advantage.For this reason, the example that provides according to the corresponding embodiment of actuator of the present invention will illustrate in conjunction with brake shoe in the braking system and brake disc below, and be used for described brake shoe is pressed to described brake disc.Yet, should be noted that, the invention is not restricted to be used for the special case of the actuator of wheel of vehicle braking system, also can be applied in other rotations and must be converted into other laterally mobile occasions and/or must move the parts that consumption and/or wearing and tearing easily take place, thereby need all occasions of the described wearing and tearing of compensation.Therefore, can significantly find out openly that from following the present invention can also have the application of other automobile aspect, for example, with turn to, clutch, speed change or similar system combine.And, can significantly find out openly that from following the present invention is not limited to the application on automobile.Therefore, be appreciated that the present invention can be applied in the situation that all these need big reduction speed ratio, its rotation with rotary component convert to the described movable part of described rotary component adjacency laterally move and be applied in the described movable part that those are used for moving the movable member that easily wearing and tearing takes place and/or consume.
Fig. 1 has schematically described according to the described actuator of first embodiment of the invention (hereinafter being called actuator); Especially, in Fig. 1, described actuator comprises the motor 3 of rotatable shaft 8 with reference character 1 sign, while reference character 3 signs.And in Fig. 1, reference character 7 and 5 identifies the friction means (brake disc) that belongs to the wheel of vehicle braking system and two brake shoes or liner respectively, and for clarity sake, described wheel and described vehicle are represented in Fig. 1.That further describe among Fig. 1 is support 6 and location and/or fixing device 6a and the 6b that is fit to motor 3 is fixed to support 6.And, the cam part that reference character 2 signs and rotatable shaft 8 are fixed and/or locked, described rotatable cam part comprises cam face 2a.At last, reference character 4 and 4a sign actuating member.
In actuator shown in Figure 11, described actuating member 4 is suitable for moving and/or moving back and forth along the Z direction; Along the Z direction moving member 4 being moved causes one or two brake member 5 (brake shoe or liner) to press to and be lifted away from described friction means (brake disc) 7.For this reason, can provide and be suitable for two brake members 5 are pressed to friction means 7 and two brake members 5 are lifted away from the device that the moving member 4 of described friction means 7 combines.For example, described device can comprise brake calipers or only use claw assembly class in the braking system of prior art.Yet described device does not fall within the scope of the invention, so no longer describe in detail.In order to understand the operation of installing described in Fig. 1 better, the running shaft of brake disc 7 is assumed that parallel with described Z direction.The rotatable part 2 that moves through along the Z direction of described actuating member 4 obtains in the rotation of the direction shown in the arrow.In fact, can find out obviously from Fig. 1 that described rotatable part 2 comprises cam face 2a, camming surface 2a and described actuating member 4 adjacency.And described rotatable part 2 is fixed to the axle 8 of motor 3.Therefore, along in the process of the rotation of the direction shown in the arrow among Fig. 1, transverse force is applied to actuating member 4, so actuating member 4 moves along the Z direction at rotary component 2.In order to allow the horizontal mobile actuating member 4 of rotatable part, described motor 3 is fixed to support 6 by fixed component or device 6a and 6b; Especially, provide described fixed component or device 6a and 6b to move and on the circumferencial direction of described dish 7, rotate at directions X to avoid motor 3.In addition, when moment of torsion is applied to rotatable shaft 8, provide described fixing device or assembly to be used for avoiding the rotation of the stator of motor 3.Described actuating member 4 can also provide the rotary component 4a with the cam face 2a adjacency of rotatable cam part; Especially, such rotatable part 4a can reduce vertical (on the directions X) power that cam part 2 is applied to actuating member 4, and this just can be more effectively convert the rotation of rotatable cam part 2 laterally mobile (along the Z direction) of actuating member 4 to.
The working principle of the actuator 1 that Fig. 1 schematically shows can be summarized as follows.Do not having under the situation of braking requirement, rotatable cam part 2 and actuating member 4 remain on standby and/or position of rest, and the cam face 2a of described cam part 2 slightly contacts with described actuating member 4a or be close.In case need braking action, described motor 3 is supplied to energy, for example is the result that the vehicle driver is applied to the power of brake petal (not shown in figure 1); Along with electric current passes through motor 3, axle 8 rotates along the direction shown in the arrow among Fig. 1 with rotatable cam part 2.Correspondingly, actuating member 4a is promoted by rotatable part 2 and laterally moves, just the direction of Z among Fig. 1.Described like this two braking pads 5 are pushed to described friction means 7 so that thereon, correspondingly, apply braking action on wheel.Obviously, rotatable cam part 2 be applied to angle part that the power (described like this power is applied on the friction means 7 by brake shoe 5) on the actuating member 4a can reach with described rotatable cam part 2 proportional and, described braking force can be by introducing Current Control and directly controlling to motor 3.When braking process finishes, when just in case the driver no longer applies power to brake petal, rotatable part 2 counter-rotatings (just opposite direction) with arrow among Fig. 1, and described actuating member 4a is also retracted until described rotatable part 2 and described actuating member 4a arrival spare space.The result that counter-rotating also can be used as the elastic force that braking action produces obtains, and perhaps as optionally and according to circumstances, described counter-rotating can apply reactive torque or the introducing by spring obtains by motor 3.
Actuating system 1 shown in Fig. 1 has overcome the problem of the actuator that influences prior art; In fact, be appreciated that described rotatable cam part 2 allows and will be converted to minimum displacement (that is, obtaining big velocity ratio) relative to big rotating.And, can obtain this big reduction speed ratio, and do not have the problem of influential electromechanical assembly of the prior art, for example to drive efficient low for return, relatively large weight and higher structural complexity.Described rotatable cam part 2 is connected to motor, described motor according to circumstances, by drive electronic or electronic control unit controls.And the high reduction speed ratio of acquisition allows the design torque of described motor and its size and weight to be reduced.
Certainly, do not departing from the scope of the present invention, can introduce a lot of the modification and/or change with reference to the actuator among above-mentioned Fig. 1; For example, according to circumstances, the rotatable cam part 2 shown in Fig. 1 can be used eccentric rotatable part, and the rotatable part of axle on 8 that just is fixed on motor 3 prejudicially replaces.This solution is passable, and especially, simplified structure also reduces cost, even it may need larger sized motor.
As mentioned above, in order to satisfy pressing for and requirement of automobile factory, modern brake actuator must compensate the gap that is caused by brake-pad wear and/or consumption.To 2 describe in conjunction with the accompanying drawings below according to the example that allows to recover fully and/or compensate the actuator in described gap of the present invention, wherein the assembly of having described in conjunction with Fig. 1 uses identical designated.
Compare with the actuator described in Fig. 1, the actuator described in Fig. 2 further comprises the shifter 6c that described motor 3 is fixed to the movable fixture 6b on the support 6 and is suitable for moving described movable fixture 6b.And, in Fig. 2, two relative slidingsurfaces of reference character 6d and 6e sign, it lays respectively on support 6 and the movable fixture 6b.In the embodiment shown in Figure 2, movable fixture 6b comprises slide member; On a side (right side among Fig. 2), corresponding abutment faces abut on described slide member 6b and the described motor 3, simultaneously, in opposite side (left side among Fig. 2), corresponding, the apparent surface 6d adjacency of the slidingsurface 6e of described slide member 6b and support 6, like this, in the mobile process of directions X (Vertical direction among Fig. 2), described slidingsurface 6e can slide on the surperficial 6d of support 6 at described slide member 6b.And described shifter 6c comprises elastic member, spring for example, and be suitable for following will be described in detail, move described slide member 6b in vertical direction.Moving described slide member 6b on directions X can cause motor 3 laterally to move along Z direction among Fig. 2 with rotatable part 2.Embodiment among Fig. 2 further provides the fixing device 6a that adds in order to motor 3 is fixed on the support 6; Especially, these fixing devices 6a is used for restrictions motor 3 on directions X.Correspondingly, among the embodiment in Fig. 2, motor 3 and described rotatable part 2 can not move (even during moving along equidirectional with slide member 6b can not) at directions X, and described motor 3 can be on the Z direction simultaneously, just, on the direction of actuation of actuating member 4, move.
In the deboost phase, the actuator among Fig. 2 is to work with the similar mode of mode of the actuator described in above-mentioned Fig. 1; Just, in case need braking action (for example, because the driver applies force to brake petal), rotatable part 2 rotates with the direction shown in the arrow among Fig. 2, and described actuating member 4 moves in the Z direction, and this just causes described brake shoe 5 to be pressed towards described friction means (brake disc) 7.Equally, similar with actuator described in Fig. 1, described rotatable part 2 counterrotatings and actuating member 4 oppositely move, until the spare space that arrives them.Yet without any braking action the time, the gap compensation process is performed, so that compensate in actuator 1 because the gap that the wearing and tearing of brake shoe and/or friction means 7 cause.This is because without any braking action the time, therefore on the Z direction without any the effect of braking force, described spring 6c spurs described slide member 6b at directions X; Correspondingly, because the result of the slope (angle [alpha]) that slide member 6b and support are 6, described motor 3 moves along the Z direction with described cam part 2, surperficial 2a up to described rotatable part 2 slightly contacts with described actuating member 4, and described actuating member 4 finally comprises rotatable part 4a; Therefore, described brake shoe 5 also slightly contacts with described friction means 7.Yet the rigidity of spring 6c can be designed to allow motor 3 in the Z direction displacement that is enough to compensate described gap to be arranged with preloading, but can not produce unwanted braking action.On the contrary, in the deboost phase, the braking force that acts on the Z direction is locked in described slide member on the slidingsurface 6d of described support, and this is just avoided described slide member 6b owing to moving that the pulling function of described spring 6c causes.
Although above-mentioned actuator in conjunction with Fig. 2 description based on foolproof design, has demonstrated for sufficiently compensating described gap particularly useful; This is particularly because described deboost phase and described compensated stage are to keep independently, thereby cause described slide member and, correspondingly, motor 3 and rotatable part 2 can only move outside the described deboost phase, this be because, during the deboost phase, transverse force is locked in described surperficial 6d with described slide member.Certainly, in the embodiment of Fig. 2, also can according to circumstances introduce a lot of modifications or change; For example, the counter-rotating of motor 3 and rotatable part 2 can or be obtained by the result of the reactive torque that produces or the reactive torque of application of electric motors 3.And also in this example, described cam part 2 can replace with eccentric part.At last, described braking force can be by introducing Current Control and directly control to motor 3.
Below, will further embodiment of the present invention be described in conjunction with Fig. 3 a and 3b, wherein, as usual, the parts of having described in conjunction with previous accompanying drawing use identical mark sign.
Actuator shown in Fig. 3 a and most important different being of the actuator shown in Fig. 2, in the actuator of Fig. 3 a, the gap compensates by effectively utilizing the rotation of motor 3, and particularly the reactive torque of Chan Shenging obtains.For this reason, the braking device 1 shown in Fig. 3 a comprises screw component 9, and described screw component 9 is accommodated in the corresponding nut parts 10, and this nut part 10 is fixed firmly to described slide member 6b.Therefore, in the described actuator of Fig. 3 a, described slide member 6b moves along directions X as the result of screw component 9 rotations, will describe in further detail it below.
In the deboost phase, described actuator of Fig. 3 a and the same action of actuator among Fig. 2; Therefore, also in the embodiment shown in Fig. 3 a, the rotatable shaft 8 of described motor 3 is connected to rotatable part 2, and described rotatable part 2 has the approximal surface with actuating member 4 adjacency, and actuating member 4 finally also comprises rotatable part 4a.Therefore, as the result that rotatable part 2 rotates, actuating member 4 laterally moves so that described brake shoe 5 is urged to described friction means 7, and simultaneously, in the counterrotating process of rotatable part 2, described brake shoe 5 is lifted away from described friction means 7.And, in the described braking device 1 of Fig. 3 a also be, described cam and motor be along the axis of motor, just, on the directions X in Fig. 3 a by restriction; Yet as the result that slide member 6b moves at directions X, motor 3 can the Z direction move with rotatable part 2.In the embodiment shown in Fig. 3 a, described screw component 9 is locked and/or be securely fixed on the stator of motor 3; Alternatively, described screw or threaded part 9 even can become the part of the stator of motor 3.During the deboost phase, just, during rotatable part 2 edges were rotated in the forward, as the result of the reactive torque that produces, the stator of motor tended to be reversed rotation; Yet, interface between the inclination of slide member 6b (angle [alpha]) and motor stator and the slide member 6b can be designed in following mode, promptly in the deboost phase, the pressure that the power on the surperficial 6d of support 6 that described slide member is applied to owing to slide member takes place and locked, so the stator of motor 3 can not rotate.That is to say, the gradient of described slide member designs in following mode, promptly in the deboost phase, act on the result who produces as reactive torque between the stator of power on the bolt member 10 and motor 3 and the slide member 6b, be not enough to move on the directions X in Fig. 3 a described slide member 6b.When the deboost phase finishes, described rotatable part 2 or because described oppositely turn round boat or be reversed because of the counter-rotating of application of electric motors 3 (just, with Fig. 2 in side shown in the arrow in the opposite direction) rotation.Especially, during its counter-rotating, rotatable part 2 is brought back to its standby or initial position, and in this position, rotatable part 2 is locked by return locking device (not shown among Fig. 3).In case described rotatable part 2 arrives spare space (position of being pinned by the return locking device just), will produce reactive torque, it is with described stator and the screw component 9 that is rotated in the forward motor.Therefore, owing to do not apply transverse force in this stage, the rotation of screw component 9 in nut or bolt member 10 can cause slide member 6b to move at directions X.Therefore, clearly, as the close result of slide member 6b, the described motor unit of motor and described rotatable part that comprises can move in the Z direction.Therefore, described rotatable part 2 can begin and described actuating member 4 adjacency, and described brake shoe 5 also can slightly contact with friction means 7.Yet also in this example, the gradient of described slide member 6b (and/or slidingsurface 6d of support 6) also can be designed to allow motor unit to move to the Z direction, thereby produces the gap compensation, and does not produce undesired braking action.
The same action among embodiment shown in Fig. 3 b and Fig. 3 a, the main difference between this two embodiment is, has adopted axial cam in Fig. 3 b.The rotatable shaft 8 of described motor 3 is connected to rotatable part 2, and described rotatable part 2 has the abutment surface 2a with the respective surfaces 4a adjacency of actuating member 4.Therefore, as the result of rotatable part 2 along the rotation of the direction shown in the arrow among Fig. 3 b, described actuating member 4 laterally moves so that described brake shoe 5 is pressed to described friction means 7, simultaneously, in the Umklapp process of rotatable part 2, described brake shoe 5 is lifted away from described friction means 7.As the result of motor stator rotation, motor 3 can move in the Z direction with rotary component 2.For this reason, in the embodiment of Fig. 3 b, described screw component 9 is locked and/or be firmly-fixed to the stator of described motor 3; Alternatively, described screw or threaded part 9 can become the part of the stator of motor 3.In braking process, just, along in the process that is rotated in the forward shown in the arrow, as the result that reactive torque produces, the stator of motor tends to counterrotating at rotatable part 2; Yet the pitch of screw component 9 and diameter can be designed to like this, and promptly in braking process, because the friction torque that produces between screw 9 and the nut 10, the stator of motor 3 is locked.That is to say that described screw 9 and nut 10 design like this, promptly in braking process, act on the power on the actuating member 4, will between screw 9 and nut 10, introduce friction torque all rotations with the stator of avoiding motor 3.When braking process finished, described rotatable part 2 was reversed (just, direction) opposite with arrow among Fig. 2 rotation because of the counter-rotating of described reactive torque or application of electric motors 3.Especially, in its Umklapp process, rotary component 2 is brought back to its standby or initial position, and in this position, rotatable part 2 is locked by return locking device (not shown among Fig. 3).In case described rotary component 2 arrives spare space (position that is locked by the return Lock Part just), will produce reactive torque, it is with stator that is rotated in the forward motor shown in the described arrow and screw component 9.Therefore, owing to be not applied in along the power of screw axial (Z direction) in this process, the rotation of screw component 9 in nut or bolt member 10 may, also will cause motor and rotatable part 2 to move in the Z direction together.Rotatable part 2 therefore can with described actuating member 4 adjacency, described brake shoe 5 also can slightly contact with described friction means 7 simultaneously.Yet also in this example, the pitch of described screw 9 and nut 10 and diameter are designed to allow motor unit to move in the Z direction, thereby produce the gap compensation, and can not produce undesired braking action.Optional embodiment can adopt to have and suitable preload torsion spring with rigidity to produce moment of torsion on the stator of motor 3, to produce its rotation in the compensation process of gap.
Abovely compare in conjunction with the described embodiment of Fig. 2 with the front in conjunction with the described embodiment of Fig. 3 a and 3b, its advantage is, the embodiment of Fig. 3 a and Fig. 3 b allows the ACTIVE CONTROL of brake-pad wear compensated stage, means that the power that moves described motor 3 and rotatable part 2 is controlled now and keep constant in whole gap compensated stage and all wear range.And, about the possible improvement of actuator shown in Fig. 3 a and the 3b, can use according to the identical consideration that previous two embodiments point out.Therefore, as mentioned above, the counterrotating of rotatable part 2 can obtain by the application of described motor reactive torque.And also in this example, eccentric part can be used to replace described cam part.In addition, because in this example, described motor stator can rotate, and can use being electrically connected of some specific types.At last, referring to the embodiment of Fig. 3 a, suitable fixing device 6a can be used for the restrictions motor group along motor reel, and just, the directions X among Fig. 3 a moves.
Below, be suitable for will describing in conjunction with Fig. 4 according to the further example of the electromechanical actuator of electromechanical module of the present invention; Equally, assembly shown in Figure 4 uses identical designated with the assembly of having described in conjunction with earlier figures.
In Fig. 4, the motor unit of described electromechanical actuator and/or braking device has only been described, for clarity sake, miscellaneous part is for example supported the support of motor unit, the slide member that combines with motor unit, and rotary component, the actuating member of adjacency, brake shoe and friction means have all omitted; Yet, it must be understood that the motor unit among Fig. 4 is suitable to be implemented in the actuator shown in Fig. 3 a and the 3b, just, combine with those assemblies shown in the there.And, must be pointed out in Fig. 4, show the rear view of described motor unit, just with the relative lateral side view of a side that described rotatable part is provided.When the motor described in Fig. 4 is implemented on actuator, in the time of for example in the actuator among Fig. 3 a and Fig. 3 b, therefore the braking process that takes place combines Fig. 3 a and the described braking process of Fig. 3 b is similar with above-mentioned; That is to say that described braking result is by the rotation and corresponding corresponding mobile acquisition pressure, actuating member that is applied to friction means by brake shoe of generation of the rotatable part that is fixed in described axle 8.Yet the mode of the motor unit execution gap compensation among Fig. 4 is different with Fig. 3's; In fact, still based on the application of the rotation of motor (housing or stator), in this example, described motor field frame can not be rotated the gap compensation process, and screw component 9 can freely rotate relative to motor field frame.For this reason, flywheel 16 is arranged between axle 8 and the screw component 9, ring 11 and outer shroud 12 in described flywheel 16 comprises.And term " flywheel " it must be understood that to interior ring 11 can rotate freely with respect to outer shroud 12 on sense of rotation B, in other words, when interior ring 11 by when the B direction is rotated, outer shroud 12 does not rotate; On the contrary, when interior ring 11 was rotated with opposite direction A, outer shroud was also rotated along identical reverse A.Furtherly, outer shroud 12 is firmly fixed and/or is locked to described screw 9, and successively, screw 9 is incorporated in nut 10 inside.As shown in Figure 4, motor reel 8 comprises first pin or the projection 14 that is fixed in described motor reel 8, and described first pin or projection 14 are fit to cooperate with second pin or the latch feature 15 of interior ring 11.Following description will make it more obvious, and the purposes of latch feature 15 is to allow described outer shroud to be rotated on reverse directions A by described running shaft 8.
The function of motor unit described in Fig. 4 and, therefore, the corresponding function of implementing the electromechanical actuator of this motor unit will be described below in conjunction with Fig. 4 and 4a to 4d.In braking process, the action of actuator of implementing the motor unit among Fig. 4 is similar with the above-mentioned action that combines Fig. 3 a and the disclosed actuator of 3b; Therefore, in braking process, described rotatable part (not shown in Fig. 4 and 4a to 4d) is rotated so that described actuating member (also not shown) laterally moves along the sense of rotation shown in the arrow B among Fig. 4, and described brake shoe is pressed towards described friction means; In braking process, described motor unit moves owing to the frictional force that produces.When braking process began, described projection 14 and described latch feature 15 relatively were arranged in the position shown in Fig. 4, and this position is corresponding with the standby or position of rest of described rotatable part.In case need braking action, corresponding braking process begins, and means that axle 8 is rotated along the arrow B direction with described rotatable part; Correspondingly, interior ring 11 and outer shroud 12 do not rotate, because effect is not applied on the described latch feature 15 by projection 14.In other words, when braking process begins and in braking process, interior ring 11 and outer shroud 12 neither do not rotate in opposite direction along the arrow B direction yet, therefore do not have the rotary pulsed screw component 9 that is securely fixed on the outer shroud 12 that is passed to.The position that running shaft 8 and interior ring 11 are taked, particularly the relative position that projection 14 and latch feature 15 are taked when braking process finishes is shown in Fig. 4 a, especially, from Fig. 4 a obviously as can be seen, when braking process finished, described latch feature 15 still remained on its position of taking (initial position) when braking process begins.In case braking process is finished or stopped, motor reel 8 is reversed, just along the A opposite with the arrow B direction to rotation.Thereby when projection 14 arrived its initial position (seeing Fig. 4 b), latch feature 15 and projection 14 engagements: it is preceding that this just means that projection 14 arrives its initial position (seeing Fig. 4 b), has only axle 8 to be rotated.Yet, in case running shaft 8 (and projection 14) arrives described initial position, the any further rotation in the A direction of described axle 8 all can produce the engagement of described projection 14 and latch feature 15, thereby ring 11 is also by oppositely A rotation (seeing Fig. 4 c) of edge in causing.And because the effect of flywheel, described outer shroud 12 is also turned over the amount identical with interior ring 11 along described reverse A.Thereby described screw component 9 is also rotated along reverse A, is moved to described support so that receive the nut part 10 of described screw component 9 along the direction near described motor cam set, so that the compensation of enforcement gap.The position that running shaft 8 is taked, particularly the position that projection 14 and latch feature 15 are taked when the gap compensation process finishes is shown in Fig. 4 c.
In case described gap compensation process is finished, described axle 8 rotates until described axle 8 and described projection 14 along postive direction B once more and arrives initial position (seeing Fig. 4 d) once more.And, be not only that axle 8 is rotated in the process of the further forward rotation of axle 8, although applying, projection 14 do not act on to latch feature 15; On the contrary, ring 11 is by device with resilience in described, for example the spring (not shown) is also also arrived described initial position along forward B rotation ring 11 in described, simultaneously projection 14 and latch feature 15 be by positioned opposite as shown in Figure 4 once more, and making described motor-cam set like this is that new deboost phase and new compensated stage are prepared.
Below, in conjunction with Fig. 5, enforcement and/or employing will disclose according to the possible layout of the braking system of actuator of the present invention; Equally, in Fig. 5, the assembly of having described in aforementioned claim uses identical designated.
Braking system among Fig. 5 comprises and is suitable for the brake petal 20 that activated by the driver; In addition, described braking system comprises actuating unit 21 (for example, measuring transducer) and the control unit 22 that is connected with described actuating unit 21.In addition, described system comprises power supply, for example as the curtage source of Vehicular battery and connect the electrical connection 24 of control unit 22 to motor 3.At last, described system also comprises and is suitable for collecting from the signal of motor 3 and the sensing device 25 of described speech number is provided to control unit 22.Actuating unit 21 is suitable for producing signal according to the migration that is applied to the brake petal 20 that the power on the described pedal 20 causes by the driver.These actuated signals are sent to control unit 22; This control unit 22 is handled signal from actuating unit 21 so that produce corresponding electrical signal, and sends this electrical signal to motor 3.For example, described electrical signal can make rotatable part in postive direction or counter-rotation; And the described signal also rotational speed with described rotatable part 2 is relevant.Described sensing device 25 is provided the function that is used for controlling motor 3, so that can generate and be delivered to motor 3 to antinoise signal (counter signal) accordingly, and the signal of collecting as sensing device 25 and/or the function of data.For example, described signal of collecting and/or data may relate to the heat that motor produces, so that avoid identical faulty operation.
In a word, can obtain very effective braking action and gap compensation fully according to actuator of the present invention.Especially, overcome the defective that influences electricity-liquid brake actuation device according to actuator of the present invention; This is because system of the present invention is a Mechatronic Systems, so without any need for oil hydraulic circuit (both neither long nor short), thereby the factor that may cause fault of described device and the complexity of this apparatus structure are reduced.And, the environmental characteristics that does not have hydraulic fluid to improve described actuator and adopted the vehicle of described device.Because described solution is applicable to described braking process (rotating cam and/or eccentric part), described motor activated stroke is really shortened to adapt to the needs of fast actuating, for example when being used in combination with the ABS system.
In addition, can also overcome the defective that influences electromechanical assembly in the prior art according to actuator of the present invention; In fact, the shared actuator of braking process and gap compensation process has reduced the complexity of size, weight and described device.Because braking process and gap compensation process are relatively independent, the latter can carry out in non-period of braking, and can be with regard to needs when braking process begins.In addition, because described solution is applicable to wear compensation (movable part or activated or be rotated device by elastic device activate), in the compensation process of gap, no longer need special control; On the contrary, it is enough, is initiatively arranging under the situation of (utilizing the rotation of motor in compensation process), applies and discharges given reactive torque subsequently to motor.The little size of described device and do not need hydraulic generator allow to create " non-suspension " system fully just can substitute the system of existing brake calipers fully.Further, size, weight, complexity, rate of fault and cost have not been reduced again as ball screw and all complex component of transfering from one department to another.Also reduced noise in all actuation process without any ball screw, and the size of scheme of the present invention and weight can keep completely little than those electromechanical assemblies of the prior art.
At last, can use side by side with electric traction motor according to the line traffic control actuator of the present invention braking system of this device (or adopt), this can realize the turning of line traffic control structure.This structure comprises the feature of line traffic control actuator and/or braking system and the characteristic of the electric propulsion on each wheel.In very simple turning device, just, each wheel near vehicle can be provided with two motor, and one is used for traction, and one is used for braking system, and described two motor are driven by an electronic control unit.Especially, this allows the full power control of any single wheel.
Of course it is to be understood that in not departing from the scope of the present invention and to carry out the change and the modification of certain limit to the foregoing description.Therefore, it must be understood that scope of the present invention is not limited to the foregoing description but is determined by appended claim.
Claims (24)
1, a kind of actuator (1) that is used for the wheel brake system of electric vehicle, wherein, described wheel brake system comprises suitable at least one friction means (7) that is connected with wheel and at least one brake shoe (5) that is fit to be pressed towards and be lifted away from described at least one friction means (7), described actuator comprises motor (3), be fit to the rotatable device that is rotated by described motor (3) and be fit to activate described at least one brake shoe (5), thereby the removable actuating member (4) of will this described at least one brake shoe pressing to described at least one friction means (7), described actuator (1) is characterised in that
Described rotatable device comprises the rotatable part (2) that has with the surface (2a) of described actuating member (4a) adjacency, so that described parts cause described actuating member (4) to move along first direction of actuation in the rotation of first sense of rotation, therefore activate described at least one brake shoe (5) and be pressed to described at least one friction means (7).
2, actuator according to claim 1,
It is characterized in that,
Described motor (3) comprises running shaft (8), and described rotatable part (2) is fixedly secured to described axle (8).
3, actuator according to claim 2,
It is characterized in that,
Described rotatable part (2) is the cam part that has with the cam face (2a) of described actuating member (4) adjacency.
4, actuator according to claim 2,
It is characterized in that,
Described rotatable part (2) is fixed to described axle (8) prejudicially.
5, according to the described actuator of arbitrary claim in the claim 1 to 4,
It is characterized in that,
Described actuating member (4) comprises the rotatable part (4a) with described surface (2a) adjacency.
6, according to the described actuator of arbitrary claim in the claim 1 to 5,
It is characterized in that,
Its further comprise support (6) and be used for described motor (3) be fixed to described support (6) fixing device (6a, 6b).
7, actuator according to claim 6,
It is characterized in that,
Described fixing device comprises and is fit to the movable fixture (6b) that is moved along second predetermined direction, and described movable fixture causes motor (3) to be moved along the 3rd predetermined direction that is basically perpendicular to described second predetermined direction and is basically parallel to described first direction of actuation with described rotatable device along second predetermined direction mobile.
8, actuator according to claim 7,
It is characterized in that,
Described movable fixture comprises slide member (6b), and it has the slidingsurface (6e) that the corresponding slidingsurface (6d) that is adapted at described support (6) go up to slide, and (6e 6d) is positioned at plane with the angled α of described second predetermined direction to described slidingsurface.
9, according to claim 7 or 8 described actuators,
It is characterized in that,
It further comprises the shifter that is fit to move along described second predetermined direction described movable fixture.
10, actuator according to claim 9,
It is characterized in that,
Described shifter comprises the elastic member (6c) that is fit to spur along described second predetermined direction described movable fixture.
11, actuator according to claim 9,
It is characterized in that,
Described shifter is activated by described motor (3).
12, actuator according to claim 11,
It is characterized in that,
Described shifter comprises nut or the bolt member (10) that is fit to the rotatable screw component (9) that is rotated by described motor (3) and takes in described screw component (9), described nut or bolt member (10) are fixedly secured to described movable fixture, move along described second predetermined direction so that the rotation of described screw component (9) causes described movable fixture.
13, actuator according to claim 12,
It is characterized in that,
Described rotatable device is adapted at rotating on second sense of rotation opposite with described first sense of rotation, its further comprise when they during in the rotation of described second sense of rotation, be used for stopping device at the described rotatable device of predetermined start position stop, thereby owing to produce reactive torque, when described rotatable device arrived described initial position, described screw component (9) was rotated in described first sense of rotation.
14, according to claim 12 or 13 described actuators,
It is characterized in that,
Described screw component (9) is securely fixed on the stator of described motor (3).
15, actuator according to claim 13,
It is characterized in that,
Described screw component (9) is fixed to the axle (8) of described motor (3) by flywheel (16), described flywheel (16) comprises interior ring (11) and outer shroud (12), ring (11) is installed simultaneously with described axle (8) in described, and described outer shroud (12) is connected with described screw component (9).
16, actuator according to claim 15,
It is characterized in that,
Described axle (8) comprises first projection (14), ring comprises latch feature (15) in described, described projection (14) is fit to cooperate with described latch feature (15), so that select described interior ring (11) direction that rotates freely with respect to described outer shroud (12).
17, actuator according to claim 16,
It is characterized in that,
At described axle (8) along in the described first sense of rotation rotating process, described latch feature (15) and described projection (14) engagement, thereby cause described interior ring (11) on described first sense of rotation, freely to rotate with respect to described outer shroud (12), simultaneously at described axle (8) along in the described second sense of rotation rotating process, described latch feature (15) breaks away from described projection (14), thereby causes described interior ring (11) freely to rotate on described second sense of rotation with respect to described outer shroud (12).
18, actuator according to claim 17,
It is characterized in that,
At described axle (8) along in the described second sense of rotation rotating process, when in case described axle (8) arrives described initial position owing to the reactive torque that generates, ring (11) is rotated in described first sense of rotation in described, thereby on described first sense of rotation, rotate described outer shroud (12) and described screw component (9), thereby cause described movable fixture (6b) to be moved at described second predetermined direction.
19, a kind of braking system that is used for electric vehicle, described braking system comprises at least one friction means (7) of the wheel that is fit to be connected to described vehicle and is suitable for pressing to and being lifted away from least one pad parts of described at least one friction means (7), described braking system is characterised in that
It comprises according to the described actuator of arbitrary claim (1) in the claim 1 to 19.
20, braking system according to claim 19,
It is characterized in that,
At least one tine that it comprises at least two brake shoes (5) and is fit to described pad is pressed to and made its opposite side that is lifted away from described at least one friction means.
21, according to claim 19 or 20 described braking system,
It is characterized in that,
It further comprises at least one brake petal (20) and a sensing unit (21), and described sensing unit (21) is fit to become to determine the corresponding signal of corresponding braking needs with the mobile relevant data transfer of described brake petal.
22, braking system according to claim 21,
It is characterized in that,
It further comprises the control unit (22) that is connected to described sensing unit (21) and is fit to the effect of the described motor of control (3).
23, braking system according to claim 22,
It is characterized in that,
Described motor rotates in described first or second sense of rotation, and described direction is for determining the function of the described signal that described braking needs.
24, braking system according to claim 23,
It is characterized in that,
It further comprises and is used for collecting the data relevant with described motor (3) and provides the device (25) of described data to described control unit (22), and the device that moves of controlling described movable fixture (6b).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP05027355.6 | 2005-12-14 | ||
| EP05027355A EP1798123B1 (en) | 2005-12-14 | 2005-12-14 | Electromechanical actuating device for a wheel brake system of a motor vehicle and a brake system equipped with such an actuating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101008425A true CN101008425A (en) | 2007-08-01 |
Family
ID=36293464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006101729832A Pending CN101008425A (en) | 2005-12-14 | 2006-12-14 | Electromechanical actuating device for a wheel brake system of a motor vehicle and a brake system equipped with such an actuating device |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US7806239B2 (en) |
| EP (1) | EP1798123B1 (en) |
| CN (1) | CN101008425A (en) |
| AT (1) | ATE407043T1 (en) |
| CA (1) | CA2570638A1 (en) |
| DE (1) | DE602005009563D1 (en) |
| ES (1) | ES2313194T3 (en) |
| PL (1) | PL1798123T3 (en) |
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| CN105683010A (en) * | 2013-10-30 | 2016-06-15 | 博世株式会社 | Brake device |
| CN111226056A (en) * | 2017-10-16 | 2020-06-02 | 威伯科欧洲有限责任公司 | Brake system, in particular a disk brake for a commercial vehicle |
| CN111483901A (en) * | 2019-01-02 | 2020-08-04 | 奥的斯电梯公司 | Elevator safety device |
| CN114382802A (en) * | 2022-03-09 | 2022-04-22 | 浙江师范大学 | Wire control actuator |
| CN114396439A (en) * | 2022-03-09 | 2022-04-26 | 浙江师范大学 | Wire control actuator |
| CN114483822A (en) * | 2022-03-09 | 2022-05-13 | 浙江师范大学 | Wire control actuator |
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| DE602005023754D1 (en) * | 2005-12-14 | 2010-11-04 | Fondazione Torino Wireless | Electro-mechanical drive and brake module for motor vehicles and vehicle equipped therewith |
| US20110253489A1 (en) * | 2010-04-16 | 2011-10-20 | Ward Gregory A | Apparatus and a System for Mitigating Wheel Skidding In a Manual Brake System |
| US8931599B2 (en) | 2012-11-01 | 2015-01-13 | Hamilton Sundstrand Corporation | Damping end-stop of electric braking apparatus |
| DE102015106841B4 (en) * | 2015-05-04 | 2020-06-04 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Disc brake |
| DE102017004436A1 (en) * | 2017-05-09 | 2018-11-15 | Wabco Europe Bvba | Electromechanical brake actuator |
| DE102019122088A1 (en) * | 2019-08-16 | 2021-02-18 | Wabco Europe Bvba | Electromechanical brake actuator |
| WO2022040713A1 (en) * | 2020-08-24 | 2022-03-03 | Stop-In-Time Gmbh | Brake device |
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| DE4330440A1 (en) * | 1993-09-08 | 1995-03-09 | Knorr Bremse Ag | Force generating device for generating a reversible working stroke |
| DE19627646C2 (en) * | 1996-07-09 | 1999-11-25 | Lucas Ind Plc | Actuator assembly for a vehicle brake and vehicle brake with such an actuator assembly |
| NL1007296C2 (en) * | 1997-10-16 | 1999-04-19 | Skf Ind Trading & Dev | Modular actuator, as well as caliper with such an actuator. |
| DE19851668A1 (en) | 1998-11-10 | 2000-05-11 | Bosch Gmbh Robert | Wheel brake arrangement for motor vehicle has electric motor, spring storage device acting upon non-linear gear set containing cam drive in direction of brake application |
| DE19949816A1 (en) * | 1999-10-15 | 2001-04-19 | Bosch Gmbh Robert | Actuator unit for wheel brakes of road vehicle, has electro-hydraulic valve circuit for anti-lock control, with power provided by motor driven pump, and pressure regulated by controller coupled to brake pedal |
| DE10046981A1 (en) * | 2000-09-22 | 2002-04-25 | Bosch Gmbh Robert | wheel brake |
| DE10140076A1 (en) * | 2001-08-16 | 2003-02-27 | Wabco Gmbh & Co Ohg | Application device for disc brakes |
| US6896106B2 (en) * | 2002-10-02 | 2005-05-24 | Arvinmeritor Technology, Llc | Method and assembly for automatic slack adjustment of an electric brake actuator |
| DE102004009832A1 (en) * | 2003-03-03 | 2004-09-16 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Disengaging system for a motor vehicle coupling or brake has lever with support point which is displaceable to adjust the operating force on the coupling |
| ITTO20030523A1 (en) | 2003-07-08 | 2005-01-09 | Skf Ab | LINEAR ELECTROMECHANICAL ACTUATOR FOR AN OPERATING BRAKE |
-
2005
- 2005-12-14 EP EP05027355A patent/EP1798123B1/en not_active Not-in-force
- 2005-12-14 PL PL05027355T patent/PL1798123T3/en unknown
- 2005-12-14 AT AT05027355T patent/ATE407043T1/en not_active IP Right Cessation
- 2005-12-14 ES ES05027355T patent/ES2313194T3/en active Active
- 2005-12-14 DE DE602005009563T patent/DE602005009563D1/en active Active
-
2006
- 2006-12-08 CA CA002570638A patent/CA2570638A1/en not_active Abandoned
- 2006-12-12 US US11/637,392 patent/US7806239B2/en not_active Expired - Fee Related
- 2006-12-14 CN CNA2006101729832A patent/CN101008425A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105143706A (en) * | 2013-03-11 | 2015-12-09 | Ve维也纳工程研究和发展有限公司 | Electrically actuated friction brake |
| CN105333038A (en) * | 2013-03-11 | 2016-02-17 | Ve维也纳工程研究和发展有限公司 | Electrically actuated friction brake |
| CN105333038B (en) * | 2013-03-11 | 2018-02-13 | Ve维也纳工程研究和发展有限公司 | Electrically-energized friction brake |
| CN105143706B (en) * | 2013-03-11 | 2018-06-26 | Ve维也纳工程研究和发展有限公司 | Electrically-energized friction brake |
| US10247267B2 (en) | 2013-03-11 | 2019-04-02 | Ve Vienna Engineering Forschungs-Und Entwicklungs Gmbh | Electrically actuated friction brake |
| CN105683010A (en) * | 2013-10-30 | 2016-06-15 | 博世株式会社 | Brake device |
| CN111226056A (en) * | 2017-10-16 | 2020-06-02 | 威伯科欧洲有限责任公司 | Brake system, in particular a disk brake for a commercial vehicle |
| CN111226056B (en) * | 2017-10-16 | 2021-10-29 | 威伯科欧洲有限责任公司 | Brake system, in particular a disk brake for a commercial vehicle |
| CN111483901A (en) * | 2019-01-02 | 2020-08-04 | 奥的斯电梯公司 | Elevator safety device |
| CN114382802A (en) * | 2022-03-09 | 2022-04-22 | 浙江师范大学 | Wire control actuator |
| CN114396439A (en) * | 2022-03-09 | 2022-04-26 | 浙江师范大学 | Wire control actuator |
| CN114483822A (en) * | 2022-03-09 | 2022-05-13 | 浙江师范大学 | Wire control actuator |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1798123B1 (en) | 2008-09-03 |
| ES2313194T3 (en) | 2009-03-01 |
| US7806239B2 (en) | 2010-10-05 |
| US20070273198A1 (en) | 2007-11-29 |
| PL1798123T3 (en) | 2009-02-27 |
| ATE407043T1 (en) | 2008-09-15 |
| CA2570638A1 (en) | 2007-06-14 |
| EP1798123A1 (en) | 2007-06-20 |
| DE602005009563D1 (en) | 2008-10-16 |
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